The 500-nanometer melamine cyanurate produced by Hongtaiji Company is a high-efficiency, environmentally friendly halogen-free flame retardant prepared using advanced nanoscale process technology. Built upon traditional flame retardants, its particle size is controlled at the nanoscale (typically around 400–500 nm) through special processes, significantly enhancing its specific surface area and dispersibility. It exhibits excellent flame-retardant efficiency, low addition levels, good thermal stability, and excellent compatibility with polymer substrates (especially engineering plastics). It exerts flame-retardant effects primarily through multiple mechanisms, including endothermic decomposition, releasing inert gases to dilute combustible gases, and promoting char formation, making it suitable for fields with high requirements for flame-retardant performance and material physical properties.
8. II.9. Technical Specifications
| 10. Item | 11. Specification Value |
| 12. Appearance | 13. 105℃ Volatile, % |
| 14. ≤0.3 | ≤0.3 |
| Average particle size D50, μm | Less than or equal to 0.6 |
| SEM morphology | Flaky or layered structure |
| Whiteness (R457) | Greater than or equal to 97 |
| PH value (10% suspension) | 6.5-7 |
| 5% thermal weight loss temperature | Greater than or equal to 320 |
| Environmentally friendly | Complies with ROHS2.0, REACH, HF |
| Density (g/cm3) | 1.68 |
| Bulk density (g/cm3) | 0.25 |
| Shelf life | 12 months |
3. Main Application Areas Usage Reference
The product is particularly suitable for halogen-free flame-retardant engineering plastics and composite materials with high requirements for flame retardant efficiency, physical and mechanical properties, and environmental friendliness. Typical applications: electronic and electrical components (connectors, coil bobbins, switches, sockets, relays, housings), automotive parts (wiring harnesses, connectors, engine peripheral components), wires and cables, LED brackets, high-end tool housings, rubber and silicone products, textile coatings, new energy battery separator coatings, etc.



